D20DAO Verifiable Randomness MCP Server

What the code does

We read the source, 11 h ago · rules 3dff92dd89df

What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.

      execFile(

Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.

Connect this server

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

claude mcp add vrf -- npx -y @d20dao/mcp

{
  "mcpServers": {
    "vrf": {
      "args": [
        "-y",
        "@d20dao/mcp"
      ],
      "command": "npx"
    }
  }
}

[mcp_servers.vrf]
command = "npx"
args = ["-y", "@d20dao/mcp"]

{
  "mcpServers": {
    "vrf": {
      "args": [
        "-y",
        "@d20dao/mcp"
      ],
      "command": "npx"
    }
  }
}

{
  "mcpServers": {
    "vrf": {
      "args": [
        "-y",
        "@d20dao/mcp"
      ],
      "command": "npx"
    }
  }
}

This one needs environment variables set before it will start: D20_DAILY_LIMIT_USDC (Spending cap per UTC day in USDC (default 1; 0 turns paid draws off).), D20_NETWORK (mainnet (default) or testnet.), D20_PAY_CHAIN (Circle CLI chain code to pay from, such as ARC or BASE (default: first funded).), D20_WALLET_ADDRESS (Agent wallet to pay from (default: the first one the Circle CLI lists).), D20_CIRCLE_CLI (Path to the Circle CLI's dist/index.js (default: circle on PATH).), D20_MCP_HOME (Folder for the daily spending record (default ~/.d20dao-mcp).). The author declared them in the registry entry; get the values from the project itself.